Non-Insulated Standard Pura Kiki 5oz Infant Bottle with Sleeve (0m-1yr) Our 100% medical grade silicone straw top eliminates distracting drinking or lid removal noises of traditional bottles making them a teacher's favourite! True to our plastic-free mission, our straw bottle is 100% plastic-free unlike other bottles that use plastic components in their straw cups. With Pura, you can be sure you are getting the safest, BPA-free and toxin-free bottle on the market. As with all products in the Kiki line, the straw bottle features our patented stainless steel lid design that allows the bottle to be used with all Pura accessories. And, if your little one is likely to have a little brother or sister, the straw bottle can be seamlessly converted into an infant or sippy bottle by swapping the straw for one of our silicone Natural Vent Teats or XL-Sipper Spouts!